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What is Kling 4.0?
Kling 4.0 is an AI video generator that makes videos of up to 30 seconds from text, keyframe images and reference material, with stereo audio.
It is built for longer, more controlled clips: you can set up to 10 keyframes to direct how a shot starts, moves and ends, and add references so characters, objects and style stay consistent.
You pay with one-time credit packs, and the packs include watermark-free downloads.
Who is Kling 4.0 for?
It is for creators and marketers who make short AI videos and want more say over how the clip unfolds.
Its references and keyframes are meant to keep a result closer to what you had in mind, though you should still review each output before you use it.
What can Kling 4.0 do?
It generates longer videos with more control and stereo audio.
The page says video extension may depend on rollout and platform integration.
- Videos of 3 to 30 seconds
- Up to 10 keyframe images
- Up to 15 multimodal reference items: up to 10 images, 5 videos totalling 30 seconds and 7 subject elements
- Two-channel stereo audio with improved lip sync
- Output up to 4K and 1080p with 10-bit HDR, while the generator on the page lists 720p and 1080p
Is Kling 4.0 available now?
The page is not consistent. It has a generator, but it also says Kling 4.0 is coming soon and points to Kling 3.0 to create videos now.
Check the generator on the site before you buy credits, and read its terms and refund policy.
How do credits work?
Generation uses credits. At 720p the cost is the generation seconds plus any reference video seconds, times the number of outputs, at 1 credit per second.
The default 5 second generation costs 5 credits. A free account is needed to buy and use credits.
How much does it cost?
Credits are sold as one-time packs from $9.9, with no subscription, and the site says credits never expire.
The site says all packs include watermark-free downloads and commercial use. Check its terms for the details and current prices.
- Starter: $9.9 for 99 credits, standard queue
- Standard: $29.9 for 330 credits, priority queue
- Pro: $49.9 for 600 credits, fast priority queue
- Premier: $99.9 for 1250 credits, highest priority and priority support
What is the refund policy?
Refunds must be requested within 7 days of purchase. A full refund applies if 10% or less of the credits were used, and a partial refund covers unused credits.
Used credits, bonus or promotional credits, taxes, payment fees and currency differences are not refunded. Requests go to support@kling3ai.net and are reviewed within 2 business days.
How good are the results?
The site advises you to review outputs before you publish or deliver them.
It suggests checking for identity drift, hands, text and logos, lip sync, continuity and reference conflicts. No AI video tool guarantees a usable result on the first try.
Alternatives to Kling 4.0
You can make AI video with the official Kling AI service, with another video model, or through a third-party site that resells access. kling3ai.net is described by its own pages as an independent seller of credits.
- Kling AI (official)The official site for the Kling video models.klingai.com ↗
- RunwayAn AI video and creative tools platform with its own video models.runwayml.com ↗
- Luma Dream MachineAn AI video generator from Luma AI that works from text and images.lumalabs.ai/dream-machine ↗
How Kling 4.0 compares
| Option | Best for | Trade-off |
|---|---|---|
| Kling 4.0 | Trying Kling-style video generation with one-time credit packs and no subscription | The operator is not named, no affiliation with Kuaishou is stated, and Kling 4.0 availability on the page is unclear |
| Kling AI (official) | Using the models directly, with the maker’s own terms and latest versions | Check its current plans, credits and regional availability |
| Runway | Creators who want editing tools alongside generation | Subscription and credit limits apply, so check its current pricing |
| Luma Dream Machine | Quick short clips from a prompt or a still image | Different models and controls from Kling, so results will differ |
kling3ai.net may suit you if you want to buy credits once and try a Kling-style generator. Because it names no operator and its Kling 4.0 availability is unclear, compare it with the official Kling AI service, and read its terms and refund policy before you pay.
Questions people ask about Kling 4.0
What is kling3ai.net?
A website that sells credits for AI video generation and has pages for Kling 4.0, 3.0 and 2.6 Pro.
Is it the official Kling site?
The site does not say it is. It does not name an operator or state any affiliation with Kuaishou. The official service is at klingai.com.
How long can a Kling 4.0 video be?
The page lists 3 to 30 seconds per generation.
How many keyframes and references can I use?
Up to 10 keyframe images and up to 15 reference items.
Does it have audio?
The page lists two-channel stereo audio with improved lip sync.
Is Kling 4.0 available yet?
The page lists a generator but also says Kling 4.0 is coming soon. Check the generator before you buy credits.
How much do credits cost?
One-time packs: $9.9 for 99 credits, $29.9 for 330, $49.9 for 600 and $99.9 for 1250.
Do credits expire?
The site says they never expire.
Can I get a refund?
Within 7 days of purchase. Full if 10% or less of the credits were used, otherwise for unused credits only.
Can I use the videos commercially?
The site says all packs include commercial use. Read its terms before you rely on it.
What are the alternatives to Kling 4.0?
The official Kling AI service, Runway and Luma Dream Machine all generate AI video from text or images.
